Mark L Yang

US Patent:

6959015, Oct 25, 2005

Filed:

May 9, 2001

Appl. No.:

09/852819

Inventors:

Jin H. Hwang - Cerritos CA, US
James C. Chang - Cypress CA, US
Mark L. Yang - Irvine CA, US

Assignee:

Crest Microsystems - Cerritos CA

International Classification:

H04J003/06
H04L025/00
G06F001/12

US Classification:

370516, 370503, 370506, 375372, 713400

Abstract:

The invention provides a novel scheme to align data streams across multiple transmission channels and match multiple transmissions with one receiving rate. The channel aligning aspect of this invention detects the occurrence of an aligning character in a plurality of input channel character streams, buffers the character stream until an aligning character has been detected on every input channel. The channel aligning system transmits filler characters over every output channel corresponding to an input channel where an aligning character has been received if an aligning character has not been detected on every input channel. The aligning system then synchronously transmits the buffered characters, starting with the aligning character and proceeding with the subsequently received characters. The rate matching aspect of this invention receives a plurality of character streams synchronized by a first clock and buffers the character streams. Buffered characters are then transmitted over one or more output channels synchronized by a second clock.